.banner{
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    width: 1600px;
}
.banner .images{
    overflow: hidden;
}
.banner .images ul{
    display: flex;
    overflow: hidden;
}
.banner .images ul .item{
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    opacity: 0;
    width: 1920px;
    height: 550px;
}
.banner .actvie{
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    opacity: 1;
    width: 1920px;
    height: 550px;
}
.banner .images img{
    position: relative;
    left: 0;
    right: 0;
    transform: translate(-50%);
    left: 50%;
    width: 1920px;
    height: 550px;
}
.btns .btn-left,.btns .btn-right{
    width: 56px;
    height: 56px;
    background-color: gray;
    border-radius: 60px;
    text-align: center;
    font-size: 25px;
    line-height: 56px;
    color: white;
    cursor: pointer;
    user-select:none;
}
.btns .btn-left:hover,.btns .btn-right:hover{
    background-color: rgb(10, 10, 10);
}
.box{
    position: absolute;
    box-shadow: 10px 0 10px 1px rgba(176, 174, 174,0.4);
    top: 5%;
    left: 13%;
    min-height: 200px;
    background-color: rgb(250, 250, 250);
    border-radius: 1px;
}
.box .box-main{
    z-index: 999;
    display: block;
    position: absolute;
    left: 200px;
    top: 0px;
    height: 500px;
    width: 0px;
    background-color: rgb(250, 250, 250);
    border-left: 1px solid rgba(100, 96, 96,0.04);
    transition: all 0.6s ease;
    box-shadow: 15px 0 10px 2px rgba(0,0,0,0.3);
    border-radius: 0 20px 20px 0;
}
.box ul li{
    position: relative;
    width: 200px;
    height: 50px;
    line-height: 50px;
    color: rgba(103, 96, 96, 0.9);
    box-sizing: border-box;
    padding: 0 15px;
    transition: all 0.1s ease;
    cursor: pointer;
}
.box ul li:hover{
    background-color:rgba(103, 96, 96, 0.2) ;
    color: rgb(100, 96, 96);
}
.box ul li::after{
    content: ">";
    position: absolute;
    right: 10px;
}
.dians{
    position: absolute;
    left: 0;
    right: 0;
    bottom: 30px;
    display: flex;
    justify-content: center;
}
.dians .d-item{
    width: 15px;
    height: 15px;
    background-color: gray;
    border-radius: 15px;
    margin-left: 15px;
    cursor: pointer;
    transition: all 0.4s;
}
.dians .d-item:hover,.dians .d-item.active{
    background-color: red;
    transform: scale(1.5);
}
.btns{
    position: absolute;
    width: 80%;

    left: 50%;
    top: 50%;
    transform: translate(0,-28px);
}
.btns .btn-left{
    position: absolute;
    left: -27%;
}
.btns .btn-right{
    position: absolute;
    right: 54%;
}